Add website navigability updates (#4504)

* Add minor website navigability updates

* Add navigation hint to User manual landing page

* add an arrow

* spelling

Author: thomas-bc

.nav.yml

@@ -38,6 +38,8 @@ nav:
         - Svc:
           - "Svc/**/docs/sdd.md"
         - Fw:
+          - DataStructures: 
+            - "Fw/DataStructures/docs/**.md"
           - "Fw/**/docs/sdd.md"
         - Drv:
           - "Drv/**/docs/sdd.md"

docs/index.md

@@ -1,3 +1,8 @@
+---
+hide:
+  - toc
+---
+
 # Documentation
 
 

docs/user-manual/index.md

@@ -7,6 +7,10 @@ hide:
 
 The User Manual dives into F Prime concepts and usage, providing a deep understanding of how the framework operates. The different chapters are listed below.
 
+> [!TIP]
+> **← Navigation pane**  
+> Use the navigation pane on the left to explore the different chapters of the User Manual. If the navigation pane is not visible, click on the menu icon (three horizontal lines) at the top left corner of the page. The navigation pane is hidden on narrow screens or if zoomed in.
+
 - __Overview__ - Technical overview of the F´ ecosystem.
 
 - __Framework__ - Learn concepts and mechanisms needed to build and use an F´ application.